Data Types - Java Quiz Questions and Answers

11 Which one does not have a valueOf(String) method?

A Integer

B Boolean

C Long

D Short

Answer: Option [D]

Java Data Type Short does not have a ValueOf(String) method. The other data types Integer, Boolean, Long, Char, Float, Double have support for the ValueOf(String) method.

12 Which of the following is NOT an example of a data type?

A int

B public

C boolean

D double

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Answer: Option [B]

public is not a data type. It is a Java Access modifier. The other Access modifiers are private and protected.

13 Int, long, byte, short are the data types of _____data types?

A unsigned

B signed

C both [A] and [B]

D None of these

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Answer: Option [B]

14 Which of the following is correct?

A int a = 16, a>>2 = 4

B int b = -8, b>>1 = -4

C int a = 16, a>>>2 = 4

D All of the above

View Answer Comment

Answer: Option [D]

15 Which of the following is the mutable wrapper class?

A Integer

B BigInteger

C Boolean

D Character

View Answer Comment

Answer: Option [B]

Java wrapper classes are immutable. BiInteger are mutable.

Data Types and Variables - Multiple Choice Questions with Answers on Core Java

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